Histology Flashcards
1
Q
nervous tissue
A
- found in brain, spinal cord & all nerves in the body
- neurons send messages to the brain
2
Q
muscle tissue
A
- multiple nuclei in one muscle
- found in the heart
- in the respiratory system
3
Q
epithelial cell
A
- found everywhere in the body
- usually sits on top of connective tissue
- functions: protection, regeneration (fast)
- type of junctions determine permability of the cell
- have nerve endings
4
Q
goblet cells
A
- single cell glands
- role: muceaus secretion
5
Q
epithelial glands
A
- endocrine (into blood)
- exocrine (duct or body surface)
- multicellular or unicellular
6
Q
connective tissue
A
- binding of organs (abdomin)
- suport
- physical protection
- immune protection
- movement
- heat production
- transport
7
Q
extracellular matrix
A
- gel found inbetween cells
- primarily in connective tissue
8
Q
collagen fibres
A
- flexible, non-extensible
- over 20 types
- made of polypeptide
9
Q
elastic fibres
A
- thinner than collagen & stretchier
- made of elastic & fibrillin
10
Q
fibroblasts
A
- spindle shaped
- most common cell in connective tissue
- make collagen, elastin, ground substance
- very important
- very similar to adult stem cells
11
Q
Loose Connective Tissue
A
- fibroblasts: produce fibers & ground substances
- macrophages: wandering, resident
- adipocytes: small clusters
- provides support and cushioning
12
Q
areolar connective tissue
A
- cells in loose mixture of cells and fibers in a semiliquid matrix: abundant throughout the body
- around organs and vessels, in membranes, under skin
13
Q
dense regular connective tissue
A
- tendons and ligaments
- cells: mainly fibroblasts
- matrix: highly organized collagen, elastic fibers
- avascular
14
Q
dense irregular connective tissue
A
- random arrangement of collagen fibers
- resists stress
- fibrous membranes capsules
15
Q
circulating connective tissue
A
- fluid connective tissue that travels in vessels
- carries nutrients, gases, wastes, and other materials throughout the body
